Heating system for wax-thread sewing-machines.



UNITED STATES PATENT GEORGE L. CORCORAN AND GEORGE A. DOBYNE, OF ST. LOUIS, MISSOURI,

ASSIGNORS TO CHAMPION SHOE MACHINERY COMPANY, OF ST. LOUIS,

MISSOURI, A CORPORATION OF MISSOURI.

HEATING SYSTEM FOR WAX-THREAD SEWING-MACHINES.

Patented April 24, 1906.

To It 1071 0111 it may concern.-

Be it known that we, GEORGE L. CoRooRAN and GEORGE A. DOBYNE, citizens of the United States, residing at St. Louis, Missouri, have jointly invented a certain new and useful Improvement in Heating Systems for VVax-Thread Sewing-Machines, of which the following is a full, clear, and exact description, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, forming part of this specification, in which Figure 1 is a side elevational view, partly in section, of the frame of a wax-thread sewing-machine, showing our improved heating system. Fig. 2 is a vertical sectional view on the line 2 2 of Fig. 1. Fig. 3 is a sectional View on the line 3 3 of Fig. 1, and Fig. 4 is a plan view of the water-heater.

This invention relates to wax-thread sewingmachines; and the object of the invention is to provide a heating system for a machine of the type referred to which will keep heated at the desired temperature the wax-pot, the shuttle-race, and the portion of the head of the machine which carries the thread-meas uring mechanism, the radiation of the heat from said portion of the head also keeping the waxed thread pliable as it passes from the wax-pot to the thread-measuring mechanism.

In carrying out our invention we provide a water-heater 1, which is attached to the frame of the machine and which may be filled through a suitable inlet supply-pipe 2. The bottom of the water-heater is preferably corrugated, and beneath the same is aburner. (Not shown.) A pipe 4 leads from the water-heater to conduct the heated water to a chamber 5 in the bottom of the wax-pot 5, said water then passing into a chamber 6, formed by a cored-out portion in the top of the frame or head of the machine to heat the said frame, and thence back to the waterheater via pipe 7. By this means the waxpot and the hollow casting, which constitute the frame or head, are heated by a circulation which is maintained through the pipes 4 and 7, so that the wax-pot and the thread-measuring mechanism, which is carried by the head ad 'acent to the chamber 6, are maintained at the proper temperature, the heat which radiates from said portion of the head keeping the waxed thread pliable as it passes from the wax-pot to the thread-measuring mechanism.

The shuttle of the machine is mounted in a I support 8, which is provided with a chamber 9, the opposite ends of which are connected by pipes 12 and 13 to the upper and lower portions of the main water-heater, as shown in Fig. 2, whereby a circulation of hot water is maintained through the shuttle-frame to keep the shuttle and its bobbin of waxed thread heated.

From the foregoing description it will be seen that we have provided a machine having embodied therein a complete heating system which keeps at the desired temperature the wax-pot, the shuttle and its bobbin of thread, the thread-measuring mechanism carried by the head of the machine, and also the waxed thread as it passes from the wax-pot to the thread-measuring mechanism.

Having thus describedthe invention, what is claimed as new, and desired to be secured by Letters Patent, is-

A wax-thread sewing-machine comprising a frame having at the front portion thereof an upwardlyprojecting casting provided with a recess which forms a shuttle-race and a transversely-extending chamber 9 formed in said casting beneath said shuttle-race, a water-tank connected to the lower part of the frame of the machine, a supply-pipe and a return-pipe connecting said chamber with said tank, a wax-pot connected to the upper part of said frame and provided with a waterchamber in the lower portion thereof, a chamber 6 formed in the portion of said frame which carries the thread-measuring mechanism with which the machine is provided, a connection between said chamber and the chamber in the wax-pot, a supply-pipe leading from the upper part of the water-tank to the chamber in the wax-pot, and a returnpipe leading from the chamber 6 to the lower part of the water-tank; substantially as described.

In testimony whereof we hereunto afiix our signatures, in the presence of two witnesses, this 3d day of July, 1905.

GEORGE L. CORCORAN.

GEORGE A. DOBYNE'.

Witnesses:

B. F. FUNK, GEORGE BAKEWELL. 

